Auxiliary independent carburetor



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M. R. WILLIAMS AUXILIARY INDEPENDENT CARBURETOR Filed March la., 1947 Fig. 1.

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- INVENTOR.

Max R. Williams BVM )A .Het

Patented July 27, 1948 UNITED y STATES .1 P'irrairrA OFFICE Anxmmx INDEPENDENT cAnnUnEron Max a. wmum, minnen, ma. Application Maren 4, 1941, semi No. '132,301 mm. (c1. 12s-m) l buretor.

Another olbject of the present invention is the provision of a device of the character described which will allow the use of two fuels, whereby in starting the engine a lighter or more volatile l'uel may he employed, and after the englnehas been started, another fuel which may be less volatile, heavier or less expensive, may be utilized.

` Still another object of the present invention is the provision of a device of the character described which is provided with independent control means for the auxiliary carburetor, so that either carburetor can be used alone, or both together if a temporary increase in power is desired; this will result in an additional accelerator pedal that can be operated either with the right or the left foot, lthus relieving a driver on long trips from the tiresome holding down of one pedal with the same foot.

A further object of the present invention is the provision of a device of the character described which will aid greatly in starting the engine more speedily in cold weather, without pumping of the accelerator or "grinding of the starter, be-

cause the auxiliary carburetor is supplied with fuel fby gravity from an auxiliary fuel tank; the latter also provides reserve fuel and can be connected not only to the auxiliary carburetor but also to the ordinary carburetor for providing the latter with fuel by means of gravity if the fuel pump should be out of order.

v With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement oi' parts without departing from the spirit of the invention as claimed.

In the accompanying drawings the preferred forms of the invention have been shown.

In said drawings:

Figure 1 is a top plan viewof a preferred embodiment of my invention partially in section on the line l-I of Figure 2; and Figure 2 is a side elevation of the same.

Similar reference characters refer to similar parts throughout the several views.

In the drawing the parts which do notrelate to my present invention are indicated in dashand-dotted lines. One of these parts is the ordinary intake manifold I, which is secured to `an internal combustion engine `(not shown) by.

means of the iianges 2, and to which is connected in a well-known manner an ordinary carburetor 3. The main fuel line 4 leads from the carburetor t to the main fuel tank (not shown).

The auxiliary carburetor 5, which may be of any suitable shape or design or constructionthat shown in the drawing forming` no part of my present invention-is connected to the intake manifold i by any ysuitable means. Ii. my new and improved ary source of fuel-air wi ture is to be installed into an existing power plant, the carburetor ii preferably is connected to the manifold i by means of an `auxiliary mani fold t, as in the instance shown. In this case the manifold d is provided with lateral openings, and the flanges l of the auxiliary manifold are secured around said openings. It my device is to be built into new cars, the manifolds 2 and d can be cast as a unitiwith suitable openings for the carburetors d and d. l The auxiliary carburetor ii ls provided with fuel from an auxiliary receptacle or fuel ta d to through a pipe d, which is provided with a shut-od valve id. The receptacle t preferably is arranged above the carburatore d and d, so that the fuel will be forced to the carburetor by means of gravity, independent of the working of a fuel pump. I prefer also to connect the 'receptacle t to the main carburetor 3` by means of a branch fuel line ll, which. is connected to a v-piece it in the main fuel line il. The branch line l l preferably is provided with a manually o operated shut-oil valve it and another valve lli which is controlled by a float i8 (Figure 2) The throttle lever Il of the carburetor l is actuated by an independent pedal IB connected thereto by means of the rod I9 and a bell crank lever 2li. The pedal IU preferably is spaced apart yfrom the accelerator pedal 2| (Figure 1) which. actuates the throttle of the carburetor 2 in a. well known manner. This arrangement makes it possible todepress one of the pedals Il and 2| n with the right foot and the other'with 'the left The pedal Il preferably i's located beand the clutch pedal located at some other drivers seat of a car,

foot. rtweenv the brake pedal 22 23, although 'it can also fbe convenient place near the Il truck, tractor or the like. The throttle lever I1 is also connected to a hand throttle control rod 24 which is extended through the'fire wall 25 and which terminates into a handle 21 at the instrument panel 2l. The carburetor B is further provided with an independent choke control which is actuated by the lever 30, the rod 3|. and the handle 32.

'I'his setup can be used on almost any car. truck, or tractor, old or new, with variations to suit the different makes and models.

These carbrretors 3 and 6, which preferably are of different sizes, are absolutely independent of each other. Either may be used at anytime without the other. or they may be used together. Change from one to the other is accomplished simply by changing the foot from one throttle pedal to the other.

Three stages of performance are available: (a) Great economy with good performance-(small carburetor alone), (b) Regular performance and economy-(regular carburetor) (c) Super perfomance when desired-(both carburetors -together).

Great economy is achieved by use of the small carburetor alone.

Great increase in power and speed is obtained by using both carburetors at the same time. This extra power is extremely useful in a quick getaway, in passing, anywhere, especially up long grades or climbing steep hills and mountains, and is extra useful when towing a trailer and in many i otherl cases.

Two kinds of fuel may be used, such as gasoline and kerosene, changing at will, and instantly,

f from one to the other, or mixing them. This feature is particularly desirable forr tractors, though it works well with cars and trucks. To use two lkinds of fuel, one closes shut-off valve Il and puts kerosene in the main tank and gasoline in the small tank 8 for star-ting.v The change from one fuel to the Aother is made by merely changing throttles.

The extra carburetor andthe controls I8, 29 and 32 will cause no confusion in the operation of a car by an inexperienced driver, as they need not be used if not desired, and the regular controls 2 I 22 and 23 do not have to be altered in any way.

Since certain changes may be'made-in the above article and different embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claim is intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which as a matter of language might be said to fall therebetween.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent is:

In an internal combustion engine, an auxiliary source of fuel-air mixture comprising an auxiliary manifold which is permanently connected to the intake manifold of the engine, an auxiliary carburetor connected to said auxiliaryl manifold, an auxiliary fuel receptacle being located above both the auxiliary carburetor, and the carburetor which is normally connected to the intake manifold of the engine, a branch of the main fuel line, which line leads .from the last mentioned carburetor to the main fuel receptacle, being extended into said auxiliary fuel receptacle and provided with a manually controlled shut-ofi.l valve as well as with a float controlled valve, an independent auxiliary fuel line provided with a shut-off valve connecting said auxiliary fuel receptacle to said auxiliary carburetor, an independent accelerator pedal being connected to the throttle of said auxiliary carburetor, and an independent choke control and hand throttle control being provided for said auxiliary carburetor, all substantially as described.

MAX R. WILLIAMS.

REFERENCES CITED The following references are of record in the` Name Date 1,506,548 Pingree Aug.v26, 1924 DeVoe et al May 27,1941 

